Transplant but then let them go in the new pot for at least a little while so they can push their roots into the new dirt. If you transplant then flip too soon the roots can stop pushing before going into the new dirt. This happened to me once I transplanted then flipped right away and when I chopped them the old root ball pulled right out the pot and I saw the old roots didn't even go into the new dirt it was like the entire repotting was worthless. I always let them dig in until I see the vigor of new growth, let the plant react to the new soil first then flip. Thats my opinion.